Installing and Replacing Desktop Board Components
Connecting to the Serial Port Header
See Figure 23, D for the location of the serial port header. Table 10 shows the pin assignments for the header.
Table 10. Serial Port Header Signal Names
Pin | Signal Name |
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1 | DCD |
|
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3 | TXD# |
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5 | Ground |
7RTS
9RI
Pin | Signal Name |
|
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2 | RXD# |
|
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4 | DTR |
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6 | DSR |
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8 | CTS |
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10 | No Connection |
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|
Connecting to the Chassis Intrusion Header
Figure 23, J on page 46 shows the location of the chassis intrusion header. This header can be connected to a mechanical switch on the chassis to detect if the chassis cover is removed.
Table 12 shows the pin assignments for the chassis intrusion header.
Table 11. Chassis Intrusion Header
Pin Description
1Intruder
2Ground
Connecting to the Alternate Front Panel Power LED Header
Figure 23, F on page 46 shows the location of the alternate front panel power LED header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. If your chassis has a three-pin power LED cable, connect it to this header.
Table 12 shows the pin assignments for the alternate front panel header.
Table 12. Alternate Front Panel Power LED Header
Pin | Description | In/Out |
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|
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1 | Front panel green LED | Out |
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|
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2 | No pin |
|
|
|
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3 | Front panel yellow LED | Out |
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|
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